Should pimobendan always be used in congenital heart failure in dog and cats?

Pimobendan has a positive inotropic and vasodilatory effect by sensitization of calcium and inhibiton of phosphodiesterase III enzyme. It is widely used for treatment of congestive heart failure from chronic valvular disease or dilated cardiomyopathy both human and veterinary medicine. Positive findings have advised about pimobendan association with increasing life quality, reducing heart failure score and increasing survival time, however, potential side effects also available. Studies of pimobendan uses in cats are underway to further assess. Therefore, it can be suggested that safe use of pimobendan is not inconvenient unless it is used except in indications.